package lab02.Test06;

/**
 * Created by lenovo on 2017/10/15.
 */
public class Ladder {
    //属性：类型double的上底、下底、高、面积
    double upper;
    double bottom;
    double height;
    double area;
    //行为：返回面积
    double area(){
        return (upper+bottom)*height/2;
    }
    //构造函数
    //main函数
    public static void main(String[] args) {

    }
}
